screen -RD 8291
# You should see the terminal in another [different] state.

Make update and upgrade in the GNU screen process:

opkg update;opkg upgrade;sleep 1;sync;sync;sync

If you now loose ssh connection to your FR it does not matter - the upgrade proceeds (as long as the FR does not sleep - if the touchscreen goes black please tap the touchscreen to prevent sleep).

If you do loose the ssh connection, you ought to be able to restart the wi-fi interface, start a ssh connection to FR and reconnect to GNU screen process and see the last couple of lines and see how it ended.

screen -RD 8291
# You should see the terminal in another [different] state.

Make update and upgrade in the GNU screen process:

opkg update;opkg upgrade;sleep 1;sync;sync;sync

If you now loose ssh connection to your FR it does not matter - the upgrade proceeds (as long as the FR does not sleep - if the touchscreen goes black please tap the touchscreen to prevent sleep).

If you do loose the ssh connection, you ought to be able to restart the wi-fi interface, start a ssh connection to FR and reconnect to GNU screen process and see the last couple of lines and see how it ended.